Officials at Columbia University said they had no plans to invite Ahmadinejad back to the campus to speak. Iran's leader sparked protests at the school last September, where he expressed doubts the Holocaust ever happened and questioned "who truly was involved" in the 9/11 attack.

Bollinger was mum Tuesday about Ahmadinejad's announcement that he was returning to the city in two months to attend the UN General Assembly.

Columbia spokesman Robert Hornsby said the school was not looking for a repeat performance from the proud member of the "axis of evil."

"It has not been the practice to have any repeat speakers among those who have already appeared at the university's World Leaders Forum series," Hornsby said.

Most Columbia students were relieved to hear Ahmadinejad would not be returning to their school.

"He is a terrorist," said Elias Josephs, 30, a Columbia business student. "I understand America and its openness toward free speech, but why entertain the enemy? They wouldn't entertain us and he has evil intention to see America fall."